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  <title>Gets information about the garbage collector</title>
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 <body class="docs"><div id="layout">
  <div id="layout-content"><div id="function.gc-status" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">gc_status</h1>
  <p class="verinfo">(PHP 7 &gt;= 7.3.0)</p><p class="refpurpose"><span class="refname">gc_status</span> &mdash; <span class="dc-title">Gets information about the garbage collector</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.gc-status-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>gc_status</strong></span>
    ( <span class="methodparam">void</span>
   ) : <span class="type">array</span></div>

  <p class="para rdfs-comment">
   Gets information about the current state of the garbage collector.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.gc-status-parameters">
  <h3 class="title">参数</h3>
  <p class="para">此函数没有参数。</p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.gc-status-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns an associative array with the following elements:
   <ul class="itemizedlist">
    <li class="listitem">
     <span class="simpara">
      <em>&quot;runs&quot;</em>
     </span>
    </li> 
    <li class="listitem">
     <span class="simpara">
      <em>&quot;collected&quot;</em>
     </span>
    </li>
    <li class="listitem">
     <span class="simpara">
      <em>&quot;threshold&quot;</em>
     </span>
    </li>
    <li class="listitem">
     <span class="simpara">
      <em>&quot;roots&quot;</em>
     </span>
    </li>
   </ul> 
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.gc-status-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-494">
    <p><strong>Example #1 <span class="function"><strong>gc_status()</strong></span> Usage</strong></p>
    <div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br /></span><span style="color: #FF8000">//&nbsp;create&nbsp;object&nbsp;tree&nbsp;that&nbsp;needs&nbsp;gc&nbsp;collection<br /></span><span style="color: #0000BB">$a&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">stdClass</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$a</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">b&nbsp;</span><span style="color: #007700">=&nbsp;[];<br />for&nbsp;(</span><span style="color: #0000BB">$i&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">;&nbsp;</span><span style="color: #0000BB">$i&nbsp;</span><span style="color: #007700">&lt;&nbsp;</span><span style="color: #0000BB">100000</span><span style="color: #007700">;&nbsp;</span><span style="color: #0000BB">$i</span><span style="color: #007700">++)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$b&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">stdClass</span><span style="color: #007700">();<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$b</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">a&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$a</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$a</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">b</span><span style="color: #007700">[]&nbsp;=&nbsp;</span><span style="color: #0000BB">$b</span><span style="color: #007700">;<br />}<br />unset(</span><span style="color: #0000BB">$a</span><span style="color: #007700">);<br />unset(</span><span style="color: #0000BB">$b</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">gc_collect_cycles</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">gc_status</span><span style="color: #007700">());</span>
</span>
</pre></div>
    </div>

    <div class="example-contents"><p>以上例程的输出类似于：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
array(4) {
  [&quot;runs&quot;]=&gt;
  int(5)
  [&quot;collected&quot;]=&gt;
  int(100002)
  [&quot;threshold&quot;]=&gt;
  int(50001)
  [&quot;roots&quot;]=&gt;
  int(0)
}
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.gc-status-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><a href="features.gc.html" class="link">Garbage Collection</a></li>
   </ul>
  </p>
 </div>


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